CN1914939A - Transmission time difference measurement method and system thereof - Google Patents

Transmission time difference measurement method and system thereof Download PDF

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Publication number
CN1914939A
CN1914939A CN200480041428.5A CN200480041428A CN1914939A CN 1914939 A CN1914939 A CN 1914939A CN 200480041428 A CN200480041428 A CN 200480041428A CN 1914939 A CN1914939 A CN 1914939A
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CN
China
Prior art keywords
measurement
terminal
base station
transmission time
difference
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Granted
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CN200480041428.5A
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Chinese (zh)
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CN1914939B (en
Inventor
松田淳一
仓岛显尚
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NEC Corp
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NEC Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205—Details
    • G01S5/021—Calibration, monitoring or correction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/006—Synchronisation arrangements determining timing error of reception due to propagation delay using known positions of transmitter and receiver

Abstract

By using a signal round propagation time (1601) between a terminal (1304) and a base station (1302) and a loop time (1603) from the moment when the terminal (1304) receives a signal from the base station (1302) and to the moment when it transmits a signal to the base station (1302), a signal propagation time (1605) between the terminal (1304) and the base station (1302) is calculated. Similarly, a signal propagation time (1606) between the terminal (1304) and a base station (1303) is calculated. The difference between the propagation time (1605) and the propagation time (1606) is compared to an arrival time difference (1607) measured at the terminal (1304) so as to calculate a transmission timing difference (1608) between the base station (1302) and the base station (1303).

Description

Transmission time difference method of measurement and system
Technical field
The present invention relates to transmission time difference method of measurement and system in the moving communicating field, particularly relate to the transmission time difference method of measurement and the system that when determining the geographical position of travelling carriage in cordless communication network, are used for measuring transmission time difference between the base station.
Background technology
In recent years, reported the multiple method that is used for positions portable formula telephone terminal (hereinafter referred to as " terminal ").Many standardization group are woven to the standard that terminal positioning has been formulated localization method and positioning sequence.
Positioning the standardization effort of method and positioning sequence as the third generation partner program (hereinafter to be referred as " 3GPP ") that realizes one of standardized tissue and set up the W-CDMA standard.Three kinds of localization methods in delivering the document TS25.305 of 3GPP standard, have been established: be used to localization method from the signal of gps satellite; Be used to localization method from signal of base station; Localization method with the information of utilizing sector, terminal place.
For above-mentioned three kinds of localization methods, be used to from the localization method of signal of base station adopt terminal measure from time difference of pilot signal time of advent of two base stations to terminal positioning.
But because the base station can not synchronous working in the W-CDMA network, so the transmission time of pilot signal is inconsistent.For the location that makes terminal has high precision, the time difference of the pilot signal time of advent that measures in end must be corrected by the transmission time difference from the pilot signal of base station.This time difference is called as " relative time is poor ", below is abbreviated as " RTD ".
In the document TS25.305 of 3GPP standard, stipulated the method for two kinds of measure R TD.Describe respectively at these method of measurement below.
Fig. 1 is the schematic diagram of explanation by the method for a kind of measure R TD of 3GPP establishment.
System shown in Fig. 1 is made up of RNC 101 and base station 102 and 103.
RNC 101 is the equipment of control base station 102 and 103.
The equipment that base station 102 and 103 is to use radio to communicate by letter with the terminal (not shown) and work under RNC 101 controls.
Fig. 2 shows the configuration of RNC 101.Fig. 2 has only shown those configuration sections required when explaining.
The composition of RNC 101 shown in Fig. 2 comprises: control unit 301, message handling device 302, information receiving and transmitting letter machine 303 and memory 304.
Control unit 301 plays the effect that control RTD measures sequence and calculates RTD according to measurement result.
Message handling device 302 produces message according to the request from control unit 301, promptly 303 sends the request that will send the message that has produced to the information receiving and transmitting letter then.In addition, message handling device 302 is also checked from the message content of information receiving and transmitting letter machine 303 reports, and is reported the type and the content of these message to control unit 301.
Information receiving and transmitting letter machine 303 sends message according to the request from message handling device 302, and to the reception of message handling device 302 report message.
Memory 304 storage RTD.
Fig. 3 shows the configuration of base station 102 and 103.Fig. 3 has only shown those configuration sections required when explaining.
Base station 102 and 103 shown in Figure 3 comprises respectively: control unit 401, message handling device 402, information receiving and transmitting letter machine 403, radio signal transceiver 404, transmit timing measuring unit 405 and gps signal receiver 406.
Control unit 401 sends the request that sends the transmission time according to the message content from message handling device 402 reports to transmit timing measuring unit 405.Control unit also sends the request of the message of the measurement result that produces report transmit timing measuring unit 405 to message handling device 402.
Message handling device 402 produces message according to the request from control unit 401, and sends the request of the message that transmission produced to information receiving and transmitting letter machine 403.Message handling device 402 is also checked from the message content of information receiving and transmitting letter machine 403 reports, and is reported the type and the content of these message to control unit 401.
Information receiving and transmitting letter machine 403 sends message according to the request from message handling device 402, and to the reception of message handling device 402 report message.
Radio signal transceiver 404 has the ability that sends radio signal and receive radio signals from terminal to terminal.
Transmit timing measuring unit 405 bases are measured from the transmission time of the pilot signal of radio signal transceiver 404 transmissions from the request of control unit 401, and to control unit 401 report measurement results.Transmit timing measuring unit 405 has also utilized from the gps time of gps signal receiver 406 reports when measuring transmit timing.
Gps signal receiver 406 is from the gps satellite received signal, and the gps time that comprises in the signal that 405 reports of transmit timing measuring unit are received.
The schematic diagram of the sequence when Fig. 4 is explanation measure R TD.
When measure R TD, the control unit 301 of RNC 101 sends the request that sends message to the base station 102 and 103 in the transmission time of asking measurement pilot signals to message handling device 302.Produce measurement request message when message handling device 302 receives message, and send measurement request message (step 501a and step 501b) to base station 102 and 103 by information receiving and transmitting letter machine 303.
When RNC 101 receives measurement request message, base station 102 and 103 information receiving and transmitting letter machine 403 to separately message handling device 402 report message to the content that receives with the message that is received.Each message handling device 402 is with reference to the content of institute's report message, and identification notifies control unit 401 to receive measurement request message from RNC 101 from the measurement request message that RNC 101 receives then.
After receiving the report of measurement request message, the content of control unit 401 check measurement requests.In this case, the transmit timing of the pilot signal that control unit 401 checkings have been asked is measured, and sends the request of measuring transmit timing to transmit timing measuring unit 405.
When receive measuring request, transmit timing measuring unit 405 is measured the transmit timing (step 502a and step 502b) of the pilot signal that sends from radio signal transceiver 405.By representing transmit timing from the gps time of gps signal receiver 406 reports.After measurement was finished, transmit timing measuring unit 405 was to control unit 401 report measurement results.
Control unit 401 initiates a message the transmission request so that to RNC 101 report measurement results to message handling device 402 after the notice of receiving the transmit timing measurement result.Message handling device 402 produces measurement report message after receiving this request, and sends the request that sends the message that produces to information receiving and transmitting letter machine 403.Information receiving and transmitting letter machine 403 sends measurement report message (step 503a and step 503b) to RNC101 after receiving message send request.
The information receiving and transmitting of RNC 101 letter machine 303 has received content with received message to message handling device 302 report message.Message handling device 302 is checked message content after receiving this notice, and reports the measurement report message that receives from base station 102 or base station 103 to control unit 301.At this moment, message handling device 302 is simultaneously to control unit 301 report measurement results.
Control unit 301 calculates the difference from the transmit timing of base station 102 and 103 reports, calculates RTD, stores RTD (step 504) then in memory 304.
Fig. 5 is a view of explaining the another kind of RTD method of measurement of being established by 3GPP.This method adopts the measured node that is known as location measurement unit (hereinafter to be referred as " LMU ").
System shown in Figure 5 by RNC 601, base station 602 and 603 and LMU 604 constitute.
RNC 601 is an equipment of realizing the control of base station 602 and 603.RNC 601 has the configuration identical with RNC 101, therefore omits explanation to this configuration at this.
Base station 602 and 603 is to utilize radio link and terminal (not shown) to realize the equipment of communicating by letter and working under RNC 601 controls.In addition, base station 602 is identical with the configuration of base station 102 and 103 with 603, therefore in the explanation of this omission to their configuration.In addition, RNC 601 also discerns the geographical position of base station 602 and 603.
LMU 604 is the reception equipment regularly that is used for measuring 602 and 603 pilot signals that send from the base station.RNC 601 also discerns the geographical position of LMU 604.
Fig. 6 is the schematic diagram that shows the configuration of LMU 604.
LMU 604 shown in Fig. 6 is by control unit 701, message handling device 702, information receiving and transmitting letter machine 703, radio signal transceiver 704 and receive regularly measuring unit 705.
Control unit 701 sends the reception request regularly of measurement pilot signals to reception timing measuring unit 705 according to the message content of being reported from message handling device 702.Control unit 701 also sends the request that produces message to message handling device 702, so that report receives regularly the measurement result in the measuring unit 705.
Message handling device 702 produces message and sends the request that sends the message that produces to information receiving and transmitting letter machine 703 according to the request from control unit 701.Message handling device 702 also checks from the message content of information receiving and transmitting letter machine 703 reports, and to the type and the content of control unit 701 report message.
Information receiving and transmitting letter machine 703 sends message according to the request from message handling device 702 and to the reception of message handling device 702 report message.
Radio signal transceiver 704 has to base station 602 and 603 transmission radio signals and 602 and 603 abilities that receive radio signals from the base station.
Fig. 7 explains that the RTD that uses LMU 604 measures the schematic diagram of sequence.
When measure R TD, the control unit 301 of RNC 601 sends request to message handling device 302, sends message so that measure the LMU 604 of the time difference of the 602 and 603 pilot signal time of receptions that receive from the base station to request.When receiving this request, message handling device 302 produces measurement request message, and sends measurement request message (step 801) by information receiving and transmitting letter machine 303 to LMU 604.At this moment, message handling device 302 is appointed as the base station 602 of measurement target and 603 information to LMU 604 reports by LMU 604 simultaneously.
When RNC 601 receives measurement request message, the message receiver 703 of LMU 604 is to the reception of message handling device 702 report message and the content of received message.The measurement request message that message handling device 702 receives from RNC 601 with reference to the content verification of institute's report message receives measurement request message to control unit 701 reports from RNC 101 then.
Control unit 701 after receiving the notice of measurement request message, the content of check measurement request.In this case, control unit 701 identify between the time of reception of asking measurement pilot signals time difference and to receiving regularly the request that measuring unit 705 sends measurement time of reception of 602 and 603 pilot signals that receive from the base station.
Receive regularly measuring unit 705 after receiving the request of measurement, measure the time of reception (step 802) of the pilot signal that receives at radio signal transceiver 704 for each base station 602 and 603.
Control unit 701 fetch poor between the time of reception of the pilot signal of each base station 602 and 603, and computing time is poor after the notice of receiving the time of reception measurement result.Control unit 701 sends the request that sends message report result of calculation to RNC 601 to message handling device 702 then.Message handling device 703 produces measurement report message after receiving this request, and sends the request that sends the message that produces to information receiving and transmitting letter machine 703.Information receiving and transmitting letter machine 703 sends measurement report message (step 803) to RNC 601 after receiving the request that sends message.
The information receiving and transmitting of RNC 601 letter machine 303 has received content with received message to message handling device 302 report message.Message handling device 302 is checked the content of message and is received measurement report message to control unit 301 reports from LMU 604 after receiving report.At this moment, message handling device 302 is simultaneously to control unit 301 report measurement results.
In control unit 301, calculate distance between LMU 604 and the base station 602 and the distance between LMU 604 and the base station 603 according to the geographical position of the geographical position of base station 602 and 603 and LMU 604, in addition poor according to the distance calculation propagation time that calculates.Control unit 301 relatively calculates RTD from the time difference of the time of reception of LMU 604 report and the difference in propagation time then, and result of calculation is stored in the memory 304 (step 804).
In addition, the technology that in the mobile communications network such as the W-CDMA network, is known as " soft handover " can be used for supporting conversation or the data communication in the moving process.Soft handover is a method of utilizing a plurality of base stations to communicate simultaneously, even in the time can not communicating by letter, also can continue communication by remaining base station under a base station.
Fig. 8 is a schematic diagram of explaining soft handover.
System shown in Fig. 8 by RNC 901, base station 902 and 903 and terminal 904 form.
RNC 901 is used for controlling base station 902 and 903 and the equipment of terminal 904.RNC 901 is identical with the configuration of RNC 101, therefore in the explanation of this omission to its configuration.
Base station 902 and 903 is the equipment that utilizes radio link and terminal 904 to communicate and work under the control of RNC901.Base station 902 is identical with the configuration of base station 102 and 103 with 903, therefore in the explanation of this omission to its configuration.
Terminal 904 is to be used for conversing or data communication the user, and the equipment that connects and communicate by base station 902 or base station 903 and RNC 901.
Fig. 9 shows the configuration of terminal 904.Fig. 9 has only shown those parts that lay down a definition required.
Terminal 904 shown in Fig. 9 comprises: control unit 1001, message handling device 1002, information receiving and transmitting letter machine 1003, radio signal transceiver 1004, signal measurement unit 1005 and radio link control unit 1006.
Control unit 1001 sends the request of the measurement pilot signals quality of reception to signal measurement unit 1005.Control unit 1001 also sends the request of message of measurement result of report signal measuring unit 1005 of being used for that produces to message handling device 1002.
The request that message handling device 1002 produces message and sends the transmission message that produces to information receiving and transmitting device 1003 according to the request that comes self-controller 1001.Message handling device 1002 is also checked from the message content of information receiving and transmitting letter machine 1003 reports and to the type and the content of control unit 1001 these message of report.
Information receiving and transmitting letter machine 1003 sends message according to the request from message handling device 1002 and to the reception of message handling device 1002 report message.
Radio signal transceiver 1004 has to the ability that is sent radio signal by the base station of radio link control unit 1006 appointments and receive radio signals from the base station of radio link control unit 1006 appointments.Radio signal transceiver 1004 also have never by 1006 appointments of radio link control unit but the base station that may receive receives the ability of pilot signal.
According to the request of control unit 1001, radio link control unit 1006 is specified the base station of transmission and received signal to radio signal transceiver 1004.
Figure 10 explains when carrying out soft handover the schematic diagram of execution sequence between the terminal 904 and base station 902 and 903.
The control unit 1001 of terminal 904 sends the request of the quality of the pilot signal that measurement receives by radio signal transceiver 1004 to signal measurement unit 1005.Signal measurement unit 1005 is measured the quality of reception of all pilot signals that received by radio signal transceiver 1004 and is reported measurement results (step 1201) to control unit 1001 after the request that receives measures signal quality.
Control unit 1001 is receiving after the measurement result of signal measurement unit 1005 reports, specify to send the base station in the base station 902 and 903 that quality of signals is parity with or superiority over predetermined quality, and produced to the message of the specified base station of RNC 901 reports with from the quality of reception of the pilot signal of these base stations to 1002 reports of information receiving and transmitting letter machine.In this case, suppose that the quality of reception of 902 and 903 pilot signals that receive from the base station has surpassed the predetermined quality of reception, and notice RNC901 base station 902 and 903 has surpassed the quality of reception that the predetermined quality of reception is also further notified each base station.
Message handling device 1002 sends the request of measurement report message with the report measurement result that send to information receiving and transmitting letter machine 1003 receive the request that sends a piece of news from control unit 1001 after.Information receiving and transmitting letter machine 1003 produces a measurement report message and sends the message (step 1202) that is produced by radio signal transceiver 1004 receive the request that sends a piece of news from message handling device 1002 after.
The information receiving and transmitting letter machine 303 of RNC 901 is after receiving report from terminal 904, to the reception of message handling device 302 report message; Receive the message handling device 302 of report and discern the measurement report message that these message are come self terminal 904, and to the reception of control unit 301 report measurement report message and the measurement result of being reported.
Whether the quality of reception from the pilot signal of base station that control unit 301 is reported with reference to the measurement result checking of being reported is parity with or superiority over predetermined quality (step 1203).In this case, the quality of reception of supposing 902 and 903 pilot signals that receive from the base station is parity with or superiority over predetermined value.
Control unit 301 sends to asking for protection with terminal 904 to message handling device 302 and carries out the base station 902 of the required radio resource of radio communication and the request of 903 transmission message.Message handling device 302 produces a resource request message and sends the request that sends the message that produces to information receiving and transmitting letter machine 303 after the request of receiving.Information receiving and transmitting letter machine 303 sends the message (step 1204) of being asked to base station 902 and 903 after the request of receiving.
When receiving resource request message, each base station 902 and 903 information receiving and transmitting letter machine 403 are to the reception of message handling device 402 report message.Each message handling device 402 these message of identification that receives report are resource request message and reception from resource request messages to control unit 401 that report.
The request that control unit 401 sends the protection radio resource to radio signal transceiver 404, radio signal transceiver 404 these radio resources (step 1205) of protection then.After radio resource was protected, control unit 401 sent the request to the protected message of RNC901 report Radio Resource that sends to message handling device 402.
Message handling device 402 produces a protection of resources and finishes message and send the request that sends the message that produces to information receiving and transmitting letter machine 403.The information receiving and transmitting letter machine 403 that receives request sends protection of resources to RNC 901 and finishes message (step 1206).
Receive of the reception of the information receiving and transmitting letter machine 303 of the RNC 901 that protection of resources finishes message to message handling device 302 report message.The message that message handling device 302 identification is received is that protection of resources is finished message and 902 and 903 received protection of resources and finish message from the base station to control unit 301 reports.
Control unit 301 sends the transmission a piece of news to message handling device 302 and changes the setting of terminal 904 so that the request of using base station 902 and 903 to communicate when the checking radio resource is protected.Message handling device 302 produces one the request that changes message and send the transmission message that produces to information receiving and transmitting letter machine 303 is set after the request of receiving.Information receiving and transmitting letter machine 303 sends to be provided with to terminal 904 and changes message (step 1207).
The message transmitter 1003 of terminal 904 is provided with when changing message receiving by radio signal transceiver 1004, to the reception of message handling device 1002 report message.The message that message handling device 1002 identifications are received is to be provided with to change message and to control unit 1001 reports the reception of change message and the content of change are set.In this case, suppose to have pointed out variation in the notice, make and when exchanging messages, use base station 902 and 903 simultaneously with RNC 901.
Control unit 1001 sends the request that changes setting to radio link control unit 1006 after receiving notice, make base station 902 and 903 can both be used for the transmission and the reception of data and voice signal.Radio link control unit 1006 changes the setting of radio signal transceiver 1004 after the request of receiving, make base station 902 and 903 can both be used for the message (step 1208) with RNC 901.After setting is finished, terminal 904 can utilize base station 902 with 903 the two carry out simultaneously and the communicating by letter of RNC 901.
Yet, in the RTD method of measurement of utilizing gps time of in 3GPP normative document TS25.301, establishing, the hardware that can receive gps signal must be installed on the base station.
In addition, though can measure, also there is the shortcoming that many LMU will newly be installed such as the RTD that utilizes LMU that considers to stipulate among the TS25.301.
Summary of the invention
The purpose of this invention is to provide a kind of need not to introduce new hardware or install on the base station new node with regard to the transmit timing between the energy measurement base station between the technology of difference.
The present invention who addresses the above problem is a kind of transmission time difference method of measurement that comprises in the system of the control appliance of the base station of terminal, two or more each asynchronous operations and control terminal and each base station, a purpose of this method is that the signal transmission time that calculates in each base station is poor, and this method comprises following step:
When terminal can be simultaneously from each base station received signal, each base station utilized measurement of round trip time functional measurement signal to terminal and two-way time of coming self terminal;
Terminal utilizes the gyration time measurement function to receive this section gyration time that this signal send to that base station from signal from a base station at each base station measurement;
It is poor the time of advent that the terminal utilization arrives the time difference measurements functional measurement, and the described time difference is from the difference of each signal of base station between the time of advent;
Control appliance obtains time difference between the signal transmission time in each base station according to following conditions: by deducting described terminal that the gyration time measured in described terminal calculates and the propagation time difference between each described base station from two-way time at each described base station measurement, and poor in the time of advent that described terminal is measured; Utilize memory function storage that calculated with related transmission time difference computing time when calculating transmission time difference.
According to the present invention, in the mobile communications network from nonsynchronous W-CDMA of transmission time of the pilot signal of base station, the difference time of advent of pilot signal can be used to measure the transmission time difference between the base station, and need not to introduce new hardware.
Description of drawings
Fig. 1 is a schematic diagram of explaining an example of the RTD computational methods of being established by 3GPP;
Fig. 2 is the schematic diagram of the configuration of the RNC 101 shown in the displayed map 1;
Fig. 3 has shown base station 102 shown in Fig. 1 and 103 configuration;
Fig. 4 is a schematic diagram of explaining an exemplary sequence of the RTD computational methods of being established by 3GPP;
Fig. 5 is a schematic diagram of explaining another example of the calculating RTD method of being established by 3GPP;
Fig. 6 is the schematic diagram of the configuration of the LMU 604 shown in the displayed map 5;
Fig. 7 is a schematic diagram of explaining another exemplary sequence of the RTD computational methods of utilizing LMU 604;
Fig. 8 is a schematic diagram of explaining soft handover;
Fig. 9 has shown the configuration of the terminal 904 shown in Fig. 8;
Figure 10 is a schematic diagram of explaining the sequence when carrying out soft handover;
Figure 11 has shown the configuration of the transmission time difference measuring system among the present invention first to the 9th work embodiment;
Figure 12 has shown base station 1302 shown in Figure 11 and 1303 configuration;
Figure 13 has shown the configuration of the terminal 1304 shown in Figure 11;
Figure 14 is a schematic diagram of explaining the sequence of the transmission time difference method of measurement among the present invention first work embodiment;
Figure 15 shows that the RTD among the present invention first work embodiment calculates the schematic diagram of principle;
Figure 16 is a schematic diagram of explaining the sequence of the transmission time difference method of measurement among the present invention second to the 8th work embodiment;
Figure 17 is a schematic diagram of explaining the sequence of the transmission time difference method of measurement among the present invention the 9th work embodiment;
Figure 18 has shown the configuration of the transmission time difference measuring system among the present invention the tenth work embodiment;
Figure 19 has shown the configuration of the terminal 2004 shown in Figure 18;
Figure 20 is a schematic diagram of explaining the sequence of the transmission time difference method of measurement among the present invention the tenth work embodiment;
Figure 21 has shown the configuration of the transmission time difference measuring system among the present invention the 11 work embodiment;
Figure 22 has shown the configuration of the location-server 2301 shown in Figure 21;
Figure 23 is a schematic diagram of explaining the sequence of the transmission time difference method of measurement among the present invention the 11 work embodiment.
Embodiment
The present invention is applied to the transmission time difference measuring system, and this system comprises the control appliance of two or more base stations and control terminal and each base station of terminal, each asynchronous working.
Control appliance comprises: measure request function, send the request of measuring of carrying out to terminal and each base station; And memory function, store the signal of base station transmission time difference related with the computing time when calculating transmission time difference.In addition, each base station comprises the measurement of round trip time function, measures the measurement request of sending when request function sends a measurement request when receiving the control appliance utilization, and measuring-signal is to terminal and the two-way time of coming self terminal.Each terminal also comprises the gyration time measurement function, when measuring request for one that receives the transmission of control appliance utilization measurement request function, measures Zi receiving the gyration time that sends to the base station from signal of base station to signal; With the difference measurements function time of advent, be used for measure arriving the time difference, described time of advent, difference was poor from time of advent of at least two signal of base station.
When terminal can be simultaneously from each base station received signal, each base station utilized measurement of round trip time functional measurement two-way time, and terminal utilizes gyration time measurement function surveyingpin to each base station measurement gyration time.Terminal also utilizes arrival time difference measurements functional measurement poor the time of advent.Control appliance is poor according to the signal transmission time that following conditions obtains in each base station then: by from deducting described terminal that the gyration time measured in described terminal calculates and the propagation time difference between each described base station in the two-way time of each described base station measurement, and poor in the time of advent that described terminal is measured; The transmission time difference that utilizes the memory function storage computation to go out then.
Following description relates to concrete work embodiment.
The first work embodiment:
Figure 11 shows the configuration of the transmission time difference measuring system among the present invention first work embodiment.
Transmission time difference measuring system shown in Figure 11 by RNC 1301, base station 1302 and 1303 and terminal 1304 form.
RNC 1301 utilizes message control base station 1302 and 1303.
Base station 1302 and 1303 and terminal 1304 exchange radio signals.
Terminal 1304 connects with RNC 1301 and is controlled by RNC 1301 by sending and receive message with RNC 1301.
Figure 12 shows base station 1302 among the present invention first work embodiment and 1303 configuration.Figure 12 has only shown those required when illustrating parts.
Base station 1302 and 1303 shown in Figure 12 comprises: control unit 1401, message handling device 1402, information receiving and transmitting letter machine 1403, radio signal transceiver 1404 and radio signal transmission/reception be measuring unit 1405 regularly.
The content that is comprised in the message according to the type of the message that is received and message handling device 1402 reports, control unit 1401 sends the request of measuring transmission/time of reception to radio signal transmission/reception timing measuring unit 1405, according to measurement result, calculate the two-way time of terminal 1301 then.Hereinafter will abbreviate " RTT " two-way time as.
Message handling device 1402 produces message and sends the request that sends the message that produces to information receiving and transmitting letter machine 1403 according to the request from control unit 1401.In addition, after the reception of information receiving and transmitting letter machine 1403 report message, message handling device 1402 is checked the type of message and the type and the message content of notice control unit 1401 received messages.
Information receiving and transmitting letter machine 1403 sends from the message of message handling device 1402 requests to RNC 1301.After receiving message from RNC 1301, information receiving and transmitting letter machine 1403 is to the reception of message handling device 1402 report message.
Figure 13 shows the configuration of the terminal 1304 among the present invention first work embodiment.In Figure 13, those parts that an explicit declaration is required.
Terminal 1304 shown in Figure 13 comprises: control unit 1501, message handling device 1502, information receiving and transmitting letter machine 1503, radio signal transceiver 1504, reception be measuring unit 1505, radio link control unit 1506, RTT gyration time measuring unit 1507 and quality of reception measuring unit 1508 regularly.
The work that control unit 1501 is controlled radio link control unit 1506, reception timing measuring unit 1505 and RTT gyration time measuring unit 1507 according to the type and the content of the received message of reporting from message handling device 1502.In addition, control unit 1501 is poor according to the time of advent of calculating pilot signal from the measurement result that receives regularly measuring unit 1505 reports.Control unit 1501 also sends the time of advent of the difference or from the request of the measurement result of RTT gyration time measuring unit 1507 reports that sends that message calculated with report to message handling device 1502.
The request that message handling device 1502 produces message that control units 1501 requests send and sends the message that transmission produces to information receiving and transmitting letter machine 1503.In addition, message handling device 1502 is checked from the type of message of information receiving and transmitting letter machine 1503 reports and to the type and the content of control unit 1501 report received messages.
Information receiving and transmitting letter machine 1503 sends the message that sends from message handling device 1502 requests by radio signal transceiver 1504 to RNC 1301.The quality of reception that information receiving and transmitting letter machine 1503 has also received by radio signal transceiver 1504 to message handling device 1501 reports from the message of RNC 1301.
Radio signal transceiver 1504 will believe that message conversion that machine 1503 request sends becomes radio signal and to these wireless signals of aerial emission from information receiving and transmitting.Radio signal transceiver 1504 also receives radio signals from the space and reports the message that is received to information receiving and transmitting letter machine 1503.
Receive regularly measuring unit 1505 measurements from the time of reception of the pilot signal of control unit 1501 specified base stations and to control unit 1501 report measurement results.
Radio link control unit 1506 is according to the base station that will use when radio signal transceiver 1504 is realized communication from the request setting of control unit 1501.
RTT gyration time measuring unit 1507 is measured from base station 1302 received signals of control unit 1501 appointments to this base station transmit signals institute's elapsed time and to control unit 1501 report measurement results.
Quality of reception measuring unit 1508 is according to the quality of reception from the pilot signal of all base stations of measuring from the request of control unit 1501 that radio signal transceiver 1504 receives, and to control unit 1501 report measurement results.
The configuration of RNC 1301 is identical with the configuration shown in Fig. 2, therefore omits explanation here.
Figure 14 is the view of the sequence of the transmission time difference method of measurement among explanation the present invention first work embodiment.
The control unit 1501 of terminal 1304 periodically sends the request of measuring to quality of reception measuring unit 1508, and quality of reception measuring unit 1508 is measured the quality of reception (step 1701) from the pilot signal of all base stations that is received by radio signal transceiver 1504 then.When measurement was finished, quality of reception measuring unit 1508 was to control unit 1501 report measurement results.
Control unit 1501 is after obtaining the notice of measurement result from quality of reception measuring unit 1508, the quality of reception and the predetermined quality reported are compared, send the request that sends message to message handling device 1502 then, the quality of the pilot signal that described message receives from the base station to RNC 1301 reports is equal to or better than the information of predetermined quality and the quality of reception of the pilot signal that receives from these base stations.In this case, the quality of reception of supposing 1302 and 1303 the two pilot signal that receive from the base station is equal to or better than predetermined quality, and therefore to the information of RNC 1301 report base stations 1302 and 1303 and from the base station quality of reception of 1302 and 1303 pilot signals that receive.
Message handling device 1502 produces measurement report message and sends the request that sends the message that produces to information receiving and transmitting letter machine 1503 after receiving request from control unit 1501.Information receiving and transmitting letter machine 1503 sends measurement report message (step 1702) by radio signal transceiver 1504 to RNC 1301 after receiving request from message handling device 1502.
The information receiving and transmitting letter machine 303 of RNC 1301 arrives reception to message handling device 302 report message after receiving measurement report message from terminal 1304.When information receiving and transmitting letter machine 303 receives report, the measurement report message that the message that message handling device 302 checkings are received is come self terminal 1304 notifies control unit 301 to receive measurement report message from terminal 1304 then.
Control unit 301 is checked the content (step 1703) of received message.In this case, because therefore oneself compare the quality of reception and the predetermined quality of being reported through receiving measurement report message from terminal 1304.In this case, the quality of reception of supposing 1302 and 1303 pilot signals that receive from the base station is parity with or superiority over predetermined quality.
When identifying terminal 1304 when the base station 1302 and 1303 that quality is parity with or superiority over predetermined quality receives pilot signals, control unit 301 beginning soft switching process.
Control unit 301 produces the message of a protection Radio Resource and sends the request that sends message to base station 1302 and 1303 to message handling device 302.Message handling device 302 produces a protection of resources request message and sends the request that sends the message that produces to message handling device 303 after receiving request from control unit 301.Information receiving and transmitting letter machine 303 sends this message (step 1704) to base station 1302 and 1303 after receiving request from message handling device 302.
Each base station 1302 and 1303 information receiving and transmitting letter machine 1403 are after receiving message from RNC 1301, to the reception of message handling device 1402 report message.Message handling device 1402 is after receiving report, and the message that identification is received is that the protection of resources request message receives the protection of resources request message to control unit 1401 reports from RNC 301 then.
Control unit 1401 is after receiving report from message handling device 1402; send the request of protection radio resource to radio signal transceiver 1403; radio signal transceiver 1403 is protected radio resource (step 1705) after receiving this request then.After the protection radio resource was finished, radio signal transceiver 1403 was finished to control unit 1401 report protections.
Control unit 1401 sends the request that sends a piece of news to RNC 1301 to message handling device 1402 after checking has been protected radio resource, described message report has been finished the protection of radio resource.After receiving request from control unit 1401, message handling device 1402 produces protection of resources and finishes message and send the request that sends the message that produces to RNC 1301 to information receiving and transmitting letter machine 1403.Information receiving and transmitting letter machine 1403 sends message (step 1706) to RNC 1301 after receiving request from message handling device 1402.
The information receiving and transmitting letter machine 303 of RNC 1301 has received message to message handling device 302 reports after receiving message from base station 1302 and 1303.Message handling device 302 is after receiving report, and the message that received of checking is that message is finished in protection of resources, 1302 and 1303 receives protection of resources and finishes message from the base station to control unit 301 reports then.
Control unit 301 is after receiving report, and the protection of checking radio resource has been finished and sent the request that sends a piece of news to terminal 1304 to message handling device 302, thereby utilizes base station 1302 and 1303 to communicate with the setting that changes terminal 1304.
Message handling device 302 produces one the request that changes message and send the transmission message that produces to information receiving and transmitting letter machine 303 is set after the request of receiving.Information receiving and transmitting letter machine 303 sends to be provided with to terminal 1304 and changes message (step 1707) then.
The information receiving and transmitting letter machine 1503 of terminal 1304 is when being provided with change message by 1504 receptions of radio signal transceiver, to the reception of message handling device 1502 report message.The message that message handling device 1502 checkings are received is to be provided with to change message and received the content that change message is set and change is set to control unit 1501 reports.In this case, the indication of the content reported be provided with to be changed utilize simultaneously base station 1302 and 1303 the two communicate.
Control unit 1501 sends the request that change to be provided with to radio link control unit 1506 after receiving report, make in the transmission of carrying out data and voice signal and use base station 1302 when receiving and 1303 the two.Radio link control unit 1506 changes the setting of radio signal transceiver 1504 after receiving this request, make base station 1302 can be used to communicate by letter (step 1708) with 1303.After change was set, control unit 1501 sent to the RNC1301 report to message handling device 1502 request that change has been finished is set.
Message handling device 1502 produces to be provided with and finishes message and send the request that sends the message that produces to information receiving and transmitting letter machine 1503 after receiving request from control unit 1501.From message handling device 1502 reception requests the time, information receiving and transmitting letter machine 1503 sends message (step 1709) by radio signal transceiver 1504 to RNC 1301.
The information receiving and transmitting of RNC 1301 letter machine 303 receive from terminal 1304 be provided with finish message after, to the reception of message handling device 302 report message.When receiving this report, message handling device 302 these message of checking are to be provided with to finish message, have received to be provided with from terminal 1304 to control unit 301 reports then and have finished message.
After control unit 301 receives report, send the request that sends message to request measurement and the base station 1303 and 1303 of the RTT of terminal 1304 to message handling device 302.
Message handling device 302 produces a measurement request message and sends the request that sends the message that produces to base station 1302 and 1303 to information receiving and transmitting letter machine 303 after receiving this request.Information receiving and transmitting letter machine 303 sends from the message (step 1710) of message handling device 302 requests to base station 1302 and 1303.
Simultaneously, control unit 301 sends request to message handling device 302, and the gyration time that differ from the time of advent and 1302 and 1303 received signals send to base station 1302 and 1303 to signal from the base station of 1302 and 1303 pilot signals that receive from the base station is measured in requesting terminal 1304.
Message handling device 302 produces a measurement request message and sends the request that sends the message that produces to terminal 1304 to information receiving and transmitting letter machine 303 after the request of receiving.Information receiving and transmitting letter machine 303 sends the message (step 1711) of message handling device 302 requests to terminal 1304.
Receive the reception of each base station 1302 of measurement request message and 1303 information receiving and transmitting letter machine 1403 from RNC 1301 to message handling device 1402 report message.Message handling device 1402 is after receiving report, and the message that received of checking is measurement request message and is received to control unit 1401 report measurement request message.
When receiving report, control unit 1401 sends measurement to time of terminal 1304 transmission radio signals with from the request of the time that terminal 1304 receives radio signals to radio signal transmissions/receptions timing measuring unit 1405.
Radio signal transmission/reception regularly measuring unit 1405 is measured to terminal 1304 and is sent the time of radio signals and from time of terminal 1304 received signals, and to control unit 1401 report measurement results (step 1712).
Control unit 1401 obtains the radio signal transmitting time reported and the difference between the time of reception and calculates RTT after regularly measuring unit 1405 receives measurement report from radio signal transmission/reception.Control unit 1401 sends to RNC 1301 to message handling device 1402 and sends the request that a piece of news is reported the RTT that calculates then.
Message handling device 1402 produces measurement report message and sends the request that sends the message that produces to information receiving and transmitting letter machine 1403.Information receiving and transmitting letter machine 1403 sends the message (step 1713) of being asked to RNC 1301.
The information receiving and transmitting letter machine 1503 of terminal 1304 is after receiving measurement request message by radio signal transceiver 1504 from RNC 1301, to the reception of message handling device 1502 report message.Message handling device 1502 is after receiving report, and the message that checking is received is measurement request message and reception from measurement request message to control unit 1501 that report.
Control unit 1501 is after receiving report, to receiving regularly that measuring unit 1505 sends the time of reception of measurement 1302 pilot signals that receive from the base station and the request of the time of reception of 1303 pilot signals that receive from the base station.Simultaneously, control unit 1401 to RTT gyration time measuring unit 1507 send measurement from the base station 1302 and 1303 time of receptions that receive radio signals and to the request of time of base station 1302 and 1303 transmitted radio signal.
Reception regularly measuring unit 1505 measurements receives the time of 1302 pilot signals that receive from the base station with the time that receives the pilot signals of 1303 receptions from the base station and to control unit 1501 report measurement results.In addition, RTT gyration time measuring unit 1507 is measured from the base station 1302 and 1303 time of receptions that receive radio signals and is sent the time of radio signals and to control unit 1501 report measurement results (step 1714) to base station 1302 and 1303.
Control unit 1501 obtains poor between each time of reception after regularly measuring unit 1505 receives the measurement result of being reported from radio signal transmission/reception, the time of advent of calculating pilot signal then is poor.The time of advent that is used to from the base station 1302 pilot signal is poor the time of advent as basic calculation.When RTT gyration time measuring unit 1507 receives the measurement result of being reported, control unit 1501 also obtains poor between the time of reception of radio signal of each base station 1302 and 1303 and the transmitting time, and is calculated as the revolution of radio signal and time of expanding.
Control unit 1501 sends the request that sends a piece of news to message handling device 1502, described message to the time of advent of RNC 1301 reports 1302 and 1303 pilot signals that receive from the base station difference and radio signal be turned back to each base station 1302 and 1303 required times.
Message handling device 1502 produces measurement report message and sends the request that sends the message that produces to information receiving and transmitting letter machine 1503 after receiving request from control unit 1501.Information receiving and transmitting letter machine 1503 sends the message (step 1715) of being asked by radio signal transceiver 1504 to RNC 1301.
From the base station 1302 and 1303 and terminal 1304 receive the information receiving and transmitting letter machine 303 of RNC1301 of measurement report message to the reception of message handling device 302 report message.The message that message handling device 302 checking receives is measurement report message, then to control unit 301 reports from the base station 1302, the measurement report message that receives of base station 1303 and terminal 1304.
Control unit 301 according to from each base station 1302 and 1303 and the measurement result of terminal 1304 reports calculate RTD (step 1716).
Figure 15 show in the step 1716 of Figure 14 when control unit 301 according to the principle from the base station 1302, when the measurement result of base station 1303 and terminal 1304 reports is calculated RTD.
If T RTTThe 1601st, the RTT of 1303 that measure and terminals 1304 in the base station, T Turn-aroundThe 1603rd, in the gyration time that terminal 1304 is that measure when communicating by letter with base station 1302, propagation time of radio wave of passing the space is with (T RTT1601-T Turn-around1603) expression is so as the time T of 1302 signals that send from the base station that receives in terminal 1304 Propagation timeThe formulate that 1605 usefulness are following:
T propagation?time1605＝(T RTT1601-T turn-aroud1603)/2
Equally, if T RTTThe 1602nd, the RTT of 1303 that measure and terminals 1304 in the base station, T Turn-aroundThe 1604th, in the gyration time that terminal 1304 is that measure when communicating by letter with base station 1303, the time T of 1303 signals that send that receives in terminal 1304 so from the base station Propagation timeThe formulate that 1606 usefulness are following:
T propagation?time1606＝(T RTT1602-T turn-around1604)/2
Here, if as the transmission time difference T between base station 1302 and the base station 1303 RTD1608 transmission times that are defined as base station 1302 near the delay of pilot signal transmission time of the base station 1303 of terminal 1304, so, were utilized T with respect to more Propagation time1605, T Propagation time1606 and terminal 1304 measure from base station 1302 and 1303 pilot signal time of advent difference T Arrival time difference1607, can be with following formulate T RTD1608:
T RTD1608＝T propagation?time1605-T propagation?time1606+T arrival?time?difference1607
Calculated the result of control unit 301 storage computation in memory 304 of the RTD between base station 1302 and the base station 1303 as mentioned above.Simultaneously, control unit 301 is also stored and is used for specifying the information of this time carrying out the terminal of measuring 1304 and the time of calculating RTD.
The second work embodiment:
In the first work embodiment, must carry out the terminal of soft handover and also carry out the required measurement of calculating RTD, but also can consider a kind of method, wherein only carry out needed measurement by the terminal of appointment rather than the terminal that all carry out soft handovers.It is the second work embodiment that this method likens to, and 16 describes with reference to the accompanying drawings.
Figure 16 is the schematic diagram of the transmission time difference method of measurement sequence of explanation the present invention second work embodiment.Therefore identical the embodiment of the sequence from step 1701 to step 1709 and first work omit explanation to it at this.In addition, in this work embodiment, the information of expression terminal 1304 functions, specifically, the physical capability that can be obtained by terminal 1304 and the information stores of certainty of measurement are in the memory 304 of RNC 1301.In this work embodiment, omitted the relevant explanation of the method for storage representation terminal 1304 performance informations in RNC 1301.
Below explanation relate to step 1701 and finish the process of RNC 1301 in the step 1801 of back execution to step 1709 sequence.
In step 1801, verified being provided with of terminal 1304 change finish after, the ability that the terminal 1304 of storage is had in control unit 301 reference memory 304 of RNC 1301.
If terminal 1304 possesses certainty of measurement when equaling or exceeding the ability of predetermined value, this process begins to carry out from step 1710.On the contrary, if terminal 1304 does not possess the ability that the certainty of measurement of the pilot signal difference time of advent equals or exceeds predetermined value, do not carry out so from the process of step 1710 beginning and just finish.
The 3rd work embodiment:
In the second work embodiment of the present invention, illustrated about selecting and carried out the method for the terminal of measurement, but it is also conceivable that the method for selecting terminal according to the measurement quantity of in Fixed Time Interval, carrying out as the standard of ability that terminal possesses.With reference to this method of Figure 16 description as the 3rd work embodiment.The sequence of step 1701 to 1709 is identical with the first work embodiment's, therefore omits related description at this.
In step 1801, being provided with of verification terminal 1304 change finish after, in control unit 301 reference memory 304 of RNC 1301 the RTD information of storage and obtain at the fixed time at interval in the measurement number of times that calculates of the RTD that carries out by terminal 1304.
If the interior at interval at the fixed time measurement number of times of carrying out of terminal 1304 does not reach the scheduled measurement number of times, then begin to carry out this process from step 1710.On the contrary, if the measurement number of times that terminal 1304 is carried out equals or exceeds pre-determined number, do not carry out so from the sequence of step 1710 beginning and just finish this process.
On the contrary, equal or exceed pre-determined number, can carry out so from the sequence of step 1710 beginning if measure number of times, and if measure number of times and be less than pre-determined number, then do not carry out from the sequence of step 1710 beginning and just finish this process.
Can suppose various ways as being identified for to measuring the method in the time interval that number of times counts, comprise from charging finish to time the charging next time as the method in this time interval.The 4th work embodiment:
In the 3rd work embodiment of the present invention, the relevant method of not carrying out measurement in Fixed Time Interval when the measurement number of times of being carried out by terminal is less than or is equal to or greater than pre-determined number has been described, but has it is also conceivable that according to carrying out the terminal measured and select to carry out the method for the terminal of measurement from the quality of base station received signal.Below with reference to Figure 16 this method as the 4th work embodiment is described.Identical among the embodiment of the sequence of step 1701 to 1709 and first work, therefore in this description will be omitted.
In step 1801, being provided with in verification terminal 1304 change finish after, the control unit 301 of RNC 1301 is checked in step 1703 from the quality of reception of the pilot signal of terminal 1304 reports.
If be lower than predetermined quality from the quality of reception of the pilot signal of terminal 1304 report, then do not carry out from the sequence of step 1710 beginning and just finish this process.On the contrary, if be parity with or superiority over predetermined quality, then carry out from the sequence of step 1710 beginning from the quality of reception of the pilot signal of terminal 1304 report.
The 5th work embodiment:
In the third and fourth work embodiment of the present invention, the method for selecting to carry out the terminal of measurement according to the measurement number of times of terminal capability, terminal and the quality of reception has been described respectively, but has it is also conceivable that the method for when calculating RTD, not carrying out measurement.Below with reference to Figure 16 this method as the 5th work embodiment is described.Identical among the embodiment of the sequence of step 1701 to 1709 and first work, therefore in this description will be omitted.
In step 1801, the control unit 301 of RNC 1301 being provided with of verification terminal 1304 change finish after, the RTD information of storage and check the RTD result of calculation of whether having stored base station 1302 and 1303 in the reference memory 304.
If do not store the RTD result of calculation of base station 1302 and 1303 in the memory 304, carry out so from the sequence of step 1710 beginning.On the contrary, if stored the RTD result of calculation of base station 1302 and 1303 in the memory 304, then do not carry out from the sequence of step 1710 beginning and just finish this process.
It is also conceivable that a kind of method that the time of calculating RTD is used with RTD.In this case, being provided with in step 1801 verification terminal 1304 change finish after, the RTD information of storage in control unit 301 reference memory 304 of RNC 1301, and check the RTD result of calculation of whether having stored base station 1302 and 1303.
If do not store the RTD result of calculation of base station 1302 and 1303 in the memory 304, then carry out from the sequence of step 1710 beginning, if but stored the RTD result of calculation of base station 1302 and 1303 in the memory 304, the RTD computing time of storage in 301 reference memory 304 of control unit.If the difference between current time and computing time is equal to or greater than predetermined time interval, then carry out sequence from step 1710 beginning, if but the time interval do not reach predetermined time interval, then do not carry out from the sequence of step 1710 beginning and just finish this process.
The 6th work embodiment:
In the present invention second and the 3rd work embodiment, described the method for selecting to carry out the terminal of measurement according to the measurement number of times of terminal capability or terminal, but also can consider the method for two kinds of methods in conjunction with the terminal of selecting to carry out measurement.Below with reference to Figure 16 this method as the 6th work embodiment is described.Identical among the sequence of step 1701 to 1709 and first embodiment, therefore in this description will be omitted.
In step 1801, being provided with of verification terminal 1304 change finish after, the ability of the terminal 1304 of storage and the measurement number of times that terminal 1304 has been carried out in Fixed Time Interval in control unit 301 reference memory 304 of RNC 1301.
If meet specified conditions, that is, equal or exceed the ability of predetermined value and be not equal to or surpass pre-determined number at the measurement number of times of pre-determined constant in the time interval if terminal 1304 possesses certainty of measurement, then carry out from the sequence of step 1710 beginning.On the other hand, if do not satisfy above-mentioned condition, then do not carry out from the sequence of step 1710 beginning and just finish this process.
It is also conceivable that the method for combination the second and the 4th work embodiment.In this case, according to a kind of possible condition example, be that terminal 1304 possesses the ability of carrying out measurement with the precision that equals or exceeds predetermined value, in addition, 1302 and 1303 receive pilot signals from the base station when the quality of reception equals or exceeds predetermined quality, control unit 301 selects terminals 1304 as carrying out the terminals of measuring in step 1801.
It is also conceivable that the method for combination the present invention second and the 5th work embodiment.In this case, according to a kind of possible condition example, be that terminal 1304 possesses the ability of carrying out measurement with the precision that equals or exceeds predetermined value, in addition, when also not storing the RTD of base station 1302 and 1303 in memory 304, control unit 301 selects terminal 1304 as carrying out the terminal of measuring in step 1801.It is also conceivable that a kind of alternative condition, terminal 1304 possesses with the precision that equals or exceeds predetermined value carries out the ability of measuring, in addition, also do not store the RTD of base station 1302 and 1303 in memory 304, perhaps the difference of RTD between computing time of current time and storage equals or exceeds predetermined time interval.
It is also conceivable that the method for combination the present invention third and fourth work embodiment.In this case, according to a kind of possible condition example, be that the interior at interval at the fixed time measurement number of times of carrying out of terminal 1304 is not equal to or surpasses pre-determined number, in addition, terminal 1,304 1302 and 1303 receives pilot signals with the quality of reception that equals or exceeds predetermined quality from the base station, and control unit 301 selects terminals 1304 as carrying out the terminals of measuring in step 1801.
It is also conceivable that the method for combination the present invention the 3rd and the 5th work embodiment.In this case, according to a kind of possible condition example, be that the measurement number of times that terminal 1304 is carried out in the time interval in pre-determined constant is not equal to or does not surpass pre-determined number, in addition, also do not store the RTD of base station 1302 and 1303 in memory 304, control unit 301 selects terminal 1304 as carrying out the terminal of measuring in step 1801.As an alternative, can also be according to a kind of possible condition example, be that the measurement number of times that terminal 1304 was carried out in the pre-determined constant time interval is not equal to or does not surpass pre-determined number, in addition, in memory 304, also do not store the RTD of base station 1302 and 1303, or the difference of RTD between computing time of storage in current time and the memory 304 equals or exceeds predetermined time interval.
It is also conceivable that a kind of method, if also do not store the RTD of base station 1302 and 1303 in the memory 304, even terminal 1304 is carried out the number of times of measuring in pre-determined constant and equaled or exceeded pre-determined number and also can select terminal 1304 as carrying out the terminal of measuring in the time interval so.It is also conceivable that a kind of alternative method, do not equal or exceed predetermined time interval if also store the difference of RTD between computing time of storage in the RTD of base station 1302 and 1303 or current time and the memory 304 in the memory 304, even terminal 1304 is carried out the number of times of measuring and equaled or exceeded pre-determined number in predetermined Fixed Time Interval so, also can select terminal 1304 as carrying out the terminal of measuring.
It is also conceivable that the method for combination the present invention the 4th and the 5th work embodiment.In this case, according to a kind of possible condition example, being terminal 1,304 1302 and 1303 receives pilot signals with the quality of reception that equals or exceeds predetermined quality from the base station, and when also not storing the RTD of base station 1302 and 1303 in the memory 304, control unit 301 selects terminals 1304 as carrying out the terminals of measuring in step 1801.As an alternative, can also be according to a kind of example of condition, being terminal 1,304 1302 and 1303 receives pilot signals with the quality of reception that equals or exceeds predetermined quality from the base station, and the RTD that does not also store base station 1302 and 1303 in the memory 304, perhaps the difference of RTD between computing time of storage equals or exceeds predetermined time interval in current time and the memory 304.
The 7th work embodiment:
It is also conceivable that combination the present invention second and third and four work embodiment select to carry out the method for the terminal of measurement.Below with reference to Figure 16 this method as the 7th work embodiment is described.Therefore identical among the sequence of step 1701 to 1709 and first embodiment omit its explanation at this.
In step 1801, when being provided with of control unit 301 verification terminals 1304 of RNC 1301 change finish after, the ability of the terminal 1304 of storage and at the pre-determined constant measurement number of times that terminal 1304 is carried out in the time interval in control unit 301 reference memory 304.In addition, the quality of reception of 1304 pairs of base stations 1302 of control unit 301 reference terminals and 1303 pilot signal.
If satisfy following condition then carry out sequence from step 1710 beginning: terminal 1304 possesses with the precision that equals or exceeds predetermined value carries out the ability of measuring; Terminal 1304 is carried out measurement in pre-determined constant in the time interval number of times is not equal to or surpasses pre-determined number.If do not satisfy above-mentioned condition, then do not carry out from the sequence of step 1710 beginning and just finish this process.
It is also conceivable that combination the present invention second, third and the 5th work embodiment select to carry out the method for the terminal of measurement.In this case, as an example, that can consider is selected to comprise as the condition of the terminal 1304 of carrying out the terminal of measuring in step 1801 by control unit 301: terminal 1304 has with the precision that equals or exceeds predetermined value carries out the ability of measuring, terminal 1304 carries out in the time interval in pre-determined constant that the number of times of measuring is not equal to or surpass pre-determined number, and does not also store the RTD of base station 1302 and 1303 in memory 304.As an alternative, the condition that it is also conceivable that comprises: terminal 1304 possesses with the precision that equals or exceeds predetermined value carries out the ability of measuring, terminal 1304 is carried out measurement in pre-determined constant in the time interval number of times is not equal to or surpasses pre-determined number, and also do not store the RTD of base station 1302 and 1303 in memory 304, perhaps the difference of RTD between computing time of having stored in current time and the memory 304 equals or exceeds predetermined time interval.
In addition, it is also conceivable that combination the present invention second, the 4th and the 5th work embodiment select to carry out the method for the terminal of measurement.In this case, as an example, that can consider is selected to comprise as the condition of the terminal 1304 of carrying out the terminal of measuring by control unit 301: terminal 1304 has with the precision that equals or exceeds predetermined value carries out the ability of measuring; The quality of reception of being reported equals or exceeds predetermined quality; And in memory 304, also do not store the RTD of base station 1302 and 1303.As an alternative, also can consider another set condition: terminal 1304 has with the precision that equals or exceeds predetermined value carries out the ability of measuring; The quality of reception of being reported equals or exceeds predetermined quality; And also do not store the RTD of base station 1302 and 1303 in memory 304, perhaps the difference of RTD between computing time of having stored in current time and the memory 304 equals or exceeds predetermined time interval.
In addition, it is also conceivable that combination the present invention the 3rd, the 4th and the 5th work embodiment select to carry out the method for the terminal of measurement.In this case, as an example, that can consider is selected to comprise as the condition of the terminal 1304 of carrying out the terminal of measuring by control unit 301: terminal 1304 is carried out measurement in pre-determined constant in the time interval number of times is not equal to or surpasses pre-determined number; The quality of reception of being reported equals or exceeds predetermined quality; And in memory 304, also do not store the RTD of base station 1302 and 1303.As an alternative, it is also conceivable that another set of condition: terminal 1304 is carried out the number of times of measuring in pre-determined constant and is no more than pre-determined number in the time interval; The quality of reception of being reported equals or exceeds predetermined quality; And also do not store the RTD of base station 1302 and 1303 in memory 304, perhaps the difference of RTD between computing time of having stored in current time and the memory 304 equals or exceeds predetermined time interval.
The 8th work embodiment:
It is also conceivable that combination the present invention second, third, the 4th and the 5th work embodiment selects to carry out the method for the terminal of measurement.Below with reference to Figure 16 this method as the 8th embodiment is described.Therefore identical among the embodiment of the sequence of step 1701 to 1709 and first work omit explanation to it at this.
In step 1801, when being provided with of verification terminal 1304 change finish after, the ability of the terminal 1304 of storage and at the pre-determined constant measurement number of times that terminal 1304 is carried out in the time interval in control unit 301 reference memory 304 of RNC 1301.Control unit 301 is gone back the quality of reception of reference in the pilot signal of 1304 pairs of base stations 1302 of terminal and 1303.Control unit 301 is also checked the RTD value of whether having stored base station 1302 and 1303 in the memory 304.
If satisfy following condition then carry out sequence from step 1710 beginning: terminal 1304 has the ability of measuring with the precision that equals or exceeds predetermined value; Carry out the number of times of measuring in the time interval in pre-determined constant and be not equal to or surpass pre-determined number; The quality of reception of being reported equals or exceeds predetermined quality, and does not also store the value of the RTD of base station 1302 and 1303 in memory 304.If do not satisfy above-mentioned condition, then do not carry out from the sequence of step 1710 beginning and just finish this process.
As an alternative, if satisfy following condition then carry out sequence from step 1710 beginning: terminal 1304 has the ability of measuring with the precision that equals or exceeds predetermined value; The number of times of carrying out measurement in pre-determined constant in the time interval is not equal to or surpasses pre-determined number; The quality of reception of being reported equals or exceeds predetermined quality; With the value of also not storing the RTD of base station 1302 and 1303 in memory 304, perhaps the difference of RTD between computing time of having stored in current time and the memory 304 equals or exceeds predetermined time interval.On the other hand, if do not satisfy above-mentioned condition, then do not carry out from the sequence of step 1710 beginning and just finish this process.
The 9th work embodiment:
Carry out when measuring the RTD that calculates with same group of base station when a plurality of terminals, can consider by calculating the method that the RTD mean value that calculates from a plurality of measurement results improves the RTD precision.
Figure 17 is the schematic diagram that is used for illustrating the sequence of transmission time difference method of measurement among the present invention the 9th work embodiment.Therefore identical among the embodiment of the sequence of step 1701 to 1716 and first work omit explanation to it at this.
Be the explanation of carrying out the process of RNC1301 in the relevant step 1901 after step 1701 is finished to the sequence of step 1716 below.
In step 1901, during the control unit 301 of RNC 1301 calculation base station 1302 and 1303 s' in step 1716 RTD, reference memory 304 is to check the RTD that whether has stored base station 1302 and 1303.
If base station 1302 and 1303 s' RTD also is not stored in the memory 304, the RTD of 301 storage computation in memory 304 of control unit and finish this process.At this moment, the information of the terminal 1304 of having carried out measurement and the computing time of RTD are specified in control unit 301 storage simultaneously in memory 304.
On the other hand, if stored base station 1302 and 1303 s' RTD in the memory 304, the computing time of the RTD that 301 references of control unit are stored, if and with the difference of current time less than predetermined value, the mean value of the RTD value of then calculating institute's RTD value of store and calculating is at this moment stored the RTD of this result of calculation as base station 1302 and 1303 then in memory 304.But, if equal or exceed predetermined value with the difference of current time, 301 values of removing oneself storage of control unit, the RTD value that storage calculates this moment in memory 304 is as base station 1302 and 1303 s' RTD then.
The tenth work embodiment:
When terminal integrated GPS receiver and can determine its position stone, can consider to utilize the method for specified position calculation RTD so.This method is described below as the tenth work embodiment.
Figure 18 shows the configuration of the transmission time difference measuring system among the present invention the tenth work embodiment.
Transmission time difference measuring system shown in Figure 18 is made up of RNC 2001, base station 2002 and 2003, terminal 2004 and gps satellite 2005.
The signal that terminal 2004 utilizations receive from gps satellite 2005 is specified its position.In addition, terminal 2004 is poor according to the time of advent of measuring 2002 and 2003 pilot signals that receive from the base station from the request of RNC 2001.
Base station 2002 and 2003 pilot signal transmitteds.
RNC 2001 has the ability that control is calculated the required whole measurement sequence of RTD and calculated RTD according to measurement result.
Figure 19 has shown the configuration of terminal 2004.Those required parts in Figure 19 the explicit declaration.
Terminal 2004 shown in Figure 19 comprises: control unit 2101, gps signal receiver 2102, position calculation unit 2103, message handling device 1502, information receiving and transmitting letter machine 1503, radio signal transceiver 1504, reception be measuring unit 1505, radio link control unit 1506 and quality of reception measuring unit 1508 regularly.Message handling device 1502, information receiving and transmitting believe that the configuration of the terminal 1304 among machine 1503, radio signal transceiver 1504, reception timing measuring unit 1505, radio link control unit 1506 and quality of reception measuring unit 1508 and the first work embodiment is identical, therefore in the explanation of this omission to these parts.
According to message content from message handling device 1502 reports, control unit 2101 control radio link control units 1506, the regularly work of measuring unit 1505, quality of reception measuring unit 1508 and position calculation unit 2103 of reception.Control unit 2101 also sends request to message handling device 1502, so as to RNC 2001 report from radio link control unit 1506, receive regularly the measurement result of each report measuring unit 1505, quality of reception measuring unit 1508 and the position calculation unit 2103.
Therefore identical among the embodiment of the configuration of RNC 2001 and first work omit explanation to it at this.Yet, the memory 304 storages information relevant with the geographical position of base station 2002 and 2003.
Therefore identical among base station 2002 and 2003 the configuration and the first work embodiment omit explanation to it at this.
Figure 20 is the schematic diagram that is used for illustrating the sequence of the transmission time difference method of measurement among the present invention the tenth work embodiment.Therefore identical among the embodiment of the sequence of step 1701 to 1709 and first work omit explanation to it at this.
After change is set has finished of control unit 301 verification terminals 1304 of RNC 2001, check whether terminal 2004 possesses to utilize GPS to locate to determine the ability (step 2201) of its position.If terminal 2004 does not possess this ability, 301 of control units finish this process.
Terminal 2004 has the ability of utilizing GPS to locate to specify its position, therefore control unit 301 sends to terminal 2004 to message handling device 302 and sends the request of message, so that specify its position and time of advent of measurement 2002 and 2003 pilot signals that receive from the base station poor.
Message handling device 302 produces measurement request message and sends the request that sends the message that produces to information receiving and transmitting letter machine 303.Information receiving and transmitting letter machine 303 sends the message (step 2202) of being asked to terminal 2004.
Information receiving and transmitting letter machine 1503 is after receiving message by radio signal transceiver 1504, to the reception of message handling device 1502 report message.The message that message handling device 1502 checking is received is the request of measuring and receives measurement request message from RNC 2001 to control unit 2101 reports.
Control unit 2101 is checked from the report content of message handling device 1502 and checking and has been received the poor request time of advent that utilizes GPS to locate to specify its position and measure 2002 and 2003 pilot signals that receive from the base station.Control unit 2101 sends the request that utilizes GPS to locate to specify its position to position calculation unit 2103 after checking out request content.Control unit 2101 sends request to measure the time of the 2002 and 2003 reception pilot signals from the base station to receiving regularly measuring unit 1505 simultaneously.
The signal that position calculation unit 2103 utilizes gps signal receiver 2102 to receive from gps satellite is specified its position.When having determined the position, position calculation unit 2103 is reported the geographical position (step 2203) that has been determined to control unit 2101.
Receive regularly the time of reception of measuring unit 1505 according to request measurement 2002 and 2003 pilot signals that receive from the base station, and to control unit 2101 report measurement results (step 2203).
Control unit 2101 is from receiving after regularly measuring unit 1505 obtains the notice of measurement result, calculate in the time of reception of measuring differ from and to obtain time of advent of 2002 and 2003 pilot signals that receive from the base station poor.
Control unit 2101 is to message handling device 1502 request of sending so that to RNC 2001 report calculates the time of advent of difference and from its geographical position of position calculation unit 2103 reports.
Message handling device 1502 produces measurement report message and sends the request that sends the message that produces to information receiving and transmitting letter machine 1503.Information receiving and transmitting letter machine 1503 sends the message of request transmission to RNC 2001 by radio signal transceiver 1504.
The message receiver 303 that receives the RNC 2001 of measurement report message from terminal 2004 believes that to information receiving and transmitting machine 302 report message are to reception.The message that message handling device 302 checkings are received is measurement report message, and receives measurement report message from terminal 2004 to control unit 301 reports.
In control unit 301, check measurement is the content of report message as a result, and carries out the process (step 2205) of following (1)-(7):
(1) obtains the geographical position of base stations 2002 and 2003 from memory 304.
(2) obtain the geographical position of terminal 2004 from measurement message.
(3) distance between calculation base station 2002 and the terminal 2004.Simultaneously, the distance between calculation base station 2003 and the terminal 2004.
(4) distance between distance between calculation base station 2002 and the terminal 2004 and base station 2003 and the terminal 2004 is poor, comes the time difference with the difference of the distance that calculates divided by the light velocity then.
(5) from measurement message, obtain in the time of advent of the pilot signal of base station 2002 that terminal 2004 calculates and 2003 poor.
(6) time difference that calculates in (4) and the difference time of advent in the pilot signal of base station 2002 that terminal 2004 measures and 2003 are compared calculate RTD.
(7) in memory 304, be stored in the RTD that calculates in (6).
In the present embodiment, all terminals with the GPS stationkeeping ability that is used to carry out switching are carried out measurement for calculating RTD, but can consider that identical way determines whether terminal carries out the method for measurement among a kind of the present invention of utilization the 3rd to the 8th work embodiment.
It is also conceivable that the method that improves the certainty of measurement of RTD by the mean value that calculates the RTD of storage in the RTD calculated and the memory 304, described in the 9th work embodiment of the present invention.
The 11 work embodiment:
In the tenth work embodiment of the present invention, oneself carry out determining of terminal 2004 geographical position by terminal 2004, also can consider to carry out this method of operating by RNC 2001.In this case, involved from the measurement report message that terminal 2004 sends in the measurement result of the gps signal that terminal 2004 receives in step 2204, the position of RNC 2001 computing terminals 2004 in step 2205 then.As an alternative, it is also conceivable that the method for carrying out computational process by location-server rather than RNC 2001.These methods are described below as the 11 work embodiment.
Figure 21 shows the configuration of the transmission time difference measuring system among the present invention the 11 work embodiment.
Transmission time difference measuring system shown in Figure 21 is made up of RNC 2001, base station 2002 and 2003, terminal 2004, gps satellite 2005 and location-server 2301.
Location-server 2301 receives request and carries out the position that computational process is come computing terminal 2004 in view of the above from RNC 2001, then to RNC 2001 report result of calculations.
Figure 22 shows the configuration of location-server 2301.In Figure 22, those required when illustrating parts have only been shown.
Location-server 2301 shown in Figure 22 is made up of control unit 2401, message handling device 2402, information receiving and transmitting letter machine 2403, position calculation processor 2404 and database 2405.
Control unit 2401 sends the request in computing terminal 2004 geographical position to position calculation processor 2404 according to the message content from message handling device 2402 reports.Control unit 2401 also sends to the request of RNC 2001 reports from the geographical position of the terminal 2004 of position calculation processor 2404 reports to message handling device 2402.
After obtaining receiving the notice of message from information receiving and transmitting letter machine 2403, message handling device 2402 is checked the content of received messages and to the content of control unit 2401 report received messages.Message handling device 2402 also receives the request that produces a piece of news from control unit 2401, and sends the request that sends the message that produces to information receiving and transmitting letter machine 2403.
When RNC 2001 receives message, information receiving and transmitting letter machine 2403 is to the reception of message handling device 2402 report message.Information receiving and transmitting letter machine 2403 also RNC 2001 sends the message of request from message handling device 2402 transmission.
Position calculation processor 2404 is when receiving request from control unit 2401, reference database 2405 is carried out the operation of the position of computing terminal 2004.After calculating is finished, position calculation processor 2404 to the geographical position of control unit 2401 reporting terminals 2004 as result of calculation.
The information of database 2405 storages such as the positional information of satellite is as the required information in the geographical position of computing terminal 2004.In this work embodiment, database 2405 is within location-server 2301, and database 2405 also can be positioned at outside the location-server 2301.
Figure 23 is the schematic diagram of the sequence of the transmission time difference method of measurement among explanation the present invention the 11 work embodiment.Therefore identical among step 1701 to 1709 and step 2201 and the present invention the tenth work embodiment omit its explanation at this.
In this work embodiment, terminal 2004 has the ability that receives gps signal, therefore control unit 301 sends to terminal 2004 to message handling device 302 and sends the request that a piece of news receives gps signal, and the time of advent of measurement 2002 and 2003 pilot signals that receive from the base station is poor.
Message handling device 302 produces measurement request message and sends the request that sends the message that produces to information receiving and transmitting letter machine 303.Information receiving and transmitting letter machine 303 sends requested message (step 2501) to terminal 2004.
The information receiving and transmitting letter machine 1503 notification message processors 1502 that receive message by radio signal transceiver 1504 have received message.The message that message handling device 1502 checkings are received is the request of measuring, and notice control unit 2101 receives measurement request message from RNC 2001.
Control unit 2101 check from the report content of message handling device 1502 and the measurement of gps signal has been asked in checking and from the base station 2002 and 2003 pilot signals that receive the time of advent difference measurement.After having verified request content, control unit 2101 sends the request of measuring gps signal to position calculation unit 2103.Simultaneously, measuring unit 1505 sends the request of measurement from the time of reception of the pilot signal of base station 2002 and 2003 to control unit 2101 to receiving regularly.
The signal content that position calculation unit 2103 has been measured by gps signal receiver 2102 to control unit 2101 reports from gps satellite.
Receive regularly measuring unit 1505 as measure the time of reception of 2002 and 2003 pilot signals that receive asking from the base station, and report measurement results (step 2502) to control unit 2101.
Control unit 2101 is from receiving after regularly measuring unit 1505 obtains the notice of measurement result, calculate between the time of reception of measuring differ from and to obtain time of advent of 2002 and 2003 pilot signals that receive from the base station poor.
Control unit 2101 sends to RNC 2001 report is calculated the time of advent of difference and from the request of the measurement result of the gps signal of position calculation unit 2103 reports to message handling device 1502.
Message handling device 1502 produces measurement report message and sends the request that sends the message that produces to information receiving and transmitting letter machine 1503.Message receiver 1503 sends to RNC 2001 by radio signal transceiver 1504 and has asked the message (step 2503) transmitted.
The message receiver 303 of RNC 2001 that receives measurement report message from terminal 2004 is to the reception of message handling device 302 report message.The message that message handling device 302 checkings receive is that measurement report message and notice control unit 301 receive measurement report message from terminal 2004.
Control unit 301 sends the request of asking computational process to message handling device 302 request of sending so that to location-server 2301.Message handling device 302 produces computation request message after receiving this request.The computation request message that generates comprises from the measurement result of the gps signal of terminal 2004 reports.
Message handling device 302 sends the request that sends the message that produces to information receiving and transmitting letter machine 303 after having produced message.Information receiving and transmitting letter machine 303 sends computation request message (step 2504) to location-server 2301 after the request of receiving.
The information receiving and transmitting letter machine 2401 that receives the location-server 2301 of this message from RNC 2001 is reported the reception of these message to message handling device 2402.Message handling device 2402 is after receiving report, and the message that checking receives is that computation request message and notice control unit 2401 have received computation request message.
Control unit 2402 sends the request of carrying out computational process to position calculation processor 2404 after receiving report.At this moment, report the measurement result that comprises in the computation request message simultaneously at the gps signal of terminal 2004.
Position calculation processor 2404 is after the request of receiving, and the required information of process of the positional information of the gps satellite that is measured by terminal is calculated in reference database 2405 acquisitions, carries out computational process, the geographical position (step 2505) of designated terminal 2004 then.Position calculation processor 2404 is behind the geographical position of having specified terminal 2004, to the geographical position of control unit 2401 reporting terminals 2004.
Control unit 2401 is after receiving report, and message handling device 2402 sends the request to the geographical position of RNC 2001 reporting terminals 2004.Message handling device 2402 produces the result of calculation report message and sends the request that sends the message that produces to information receiving and transmitting letter machine 2403 after the request of receiving.Information receiving and transmitting letter machine 2403 sends result of calculation report message (step 2506) to RNC 2001 after the request of receiving.
The information receiving and transmitting that receives the RNC 2001 of result of calculation report message from location-server 2301 is believed the reception of machine 303 to message handling device 302 report message.The message handling device 302 that receives report verifies that the message that receives is the result of calculation report message, and notice control unit 301 has received the result of calculation report message.
Control unit 301 is checked the content of result of calculation report message after receiving report, so carry out the process (step 2507) of following (1)-(7):
(1) obtains the geographical position of base stations 2002 and 2003 from memory 304.
(2) obtain the geographical position of terminal 2004 from result of calculation message.
(3) distance between calculation base station 2002 and the terminal 2004.Simultaneously, the distance between calculation base station 2003 and the terminal 2004.
(4) distance between distance between calculation base station 2002 and the terminal 2004 and base station 2003 and the terminal 2004 is poor, and comes computing time poor with the difference of the distance that calculates divided by the light velocity.
(5) from measurement message, obtain in the time of advent of the pilot signal of base station 2002 that terminal 2004 is measured and 2003 poor.
(6) time difference that calculates in (4) and the difference time of advent in the pilot signal of base station 2002 that terminal 2004 measures and 2003 are compared to calculate RTD.
(7) in memory 304, be stored in the RTD that calculates in (6).
Though in this work embodiment, carry out the measurement of calculating RTD, also can consider to use the method identical to realize determining whether terminal carries out measurement with the present invention the 3rd to the 8th work embodiment by all terminals with GPS positioning function.
As an alternative, it is also conceivable that according to the present invention the 9th work embodiment and adopt the RTD mean value of calculating to improve the method for precision.
It is also conceivable that the mean value of the RTD that calculates among RTD by storage in the computing store 304 and the present invention the 9th work embodiment improves the method for certainty of measurement.

Claims (46)

1. transmission time difference method of measurement in the system of the control appliance of the base station with terminal, two or more each asynchronous workings and control terminal and each base station, described method is calculated the transmission time difference of the signal in each described base station, and described method comprises step:
When described terminal can be simultaneously from each described base station received signal,
Each described base station utilizes measurement of round trip time functional measurement signal to arrive described terminal and from two-way time of described terminal;
Described terminal utilize the gyration time measurement function at each described base station measurement from receiving from signal of base station to the gyration time that signal is transmitted into that base station;
Described terminal utilization arrives the time difference measurements function and measures and arrive the time difference, and what described time of advent, difference was a signal between the time of each described base station arrival is poor; And
Described control appliance obtains the transmission time difference of each described signal of base station according to following condition: by deducting described terminal that the gyration time measured in described terminal calculates and the propagation time difference between each described base station from two-way time at each described base station measurement, and poor in the time of advent that described terminal is measured; Utilize memory function storage and the related transmission time difference that is calculated computing time that calculates transmission time difference.
2. transmission time difference method of measurement according to claim 1, in wherein said terminal, described base station and the described control appliance each only can be simultaneously from each described base station received signal when described terminal, and described terminal is just to carry out the process of described step when satisfying the designated terminal of predetermined condition.
3. transmission time difference method of measurement according to claim 2, wherein can utilize the certainty of measurement that equals or exceeds the certainty of measurement of predesignating as described predetermined condition realize described terminal described gyration time measurement function and described time of advent the difference measurements function.
4. transmission time difference method of measurement according to claim 2 has wherein been used number of times that described gyration time measurement function and described time of advent, the difference measurements function was carried out measurement to satisfy predetermined condition with described terminal and has been used as described predetermined condition.
5. transmission time difference method of measurement according to claim 2 also comprises step, and wherein said terminal uses quality of reception measurement function to measure the quality of reception of the signal that receives from each described base station;
Wherein, the described quality of reception of measuring with the described quality of reception measurement function that utilizes described terminal satisfies predetermined condition and is used as described predetermined condition.
6. transmission time difference method of measurement according to claim 2, wherein, also not utilizing described memory function to store the transmission time difference of each described base station, or current time and utilize difference between described computing time of described transmission time difference of described memory function storage to satisfy predetermined condition to be used as described predetermined condition.
7. transmission time difference method of measurement according to claim 2, wherein with can utilize the certainty of measurement that equals or exceeds the certainty of measurement of predesignating realize described terminal described gyration time measurement function and described time of advent the difference measurements function, in addition, described terminal is utilized the number of times of described gyration time measurement function and the described difference measurements function executing measurement time of advent to satisfy predetermined condition and is used as described predetermined condition.
8. transmission time difference method of measurement according to claim 2 also comprises step, and wherein said terminal uses quality of reception measurement function to measure the quality of reception of the signal that receives from each described base station;
Wherein, with can utilize the certainty of measurement that equals or exceeds the certainty of measurement of predesignating realize described terminal described gyration time measurement function and described time of advent the difference measurements function, in addition, the described quality of reception of using the described quality of reception measurement function of described terminal to measure satisfies predetermined condition and is used as described predetermined condition.
9. transmission time difference method of measurement according to claim 2, wherein with can utilize the certainty of measurement that equals or exceeds the certainty of measurement of predesignating realize described terminal described gyration time measurement function and described time of advent the difference measurements function, in addition, also do not utilize the transmission time difference of each described base station of described memory function storage, or current time and utilize difference between described computing time of described transmission time difference of described memory function storage to satisfy predetermined condition to be used as described predetermined condition.
10. transmission time difference method of measurement according to claim 2 also comprises step, and wherein said terminal uses quality of reception measurement function to measure the quality of reception of the signal that receives from each described base station;
Wherein, use the number of times that the described gyration time measurement function and the described time of advent, the difference measurements function executing was measured to satisfy predetermined condition with described terminal, in addition, the described quality of reception of using the described quality of reception measurement function of described terminal to measure satisfies predetermined condition and is used as described predetermined condition.
11. transmission time difference method of measurement according to claim 2, wherein, use the number of times that the described gyration time measurement function and the described time of advent, the difference measurements function executing was measured to satisfy predetermined condition with described terminal, in addition, also do not utilize the transmission time difference of each described base station of described memory function storage, or current time and utilize difference between described computing time of described transmission time difference of described memory function storage to satisfy predetermined condition to be used as described predetermined condition.
12. transmission time difference method of measurement according to claim 2 also comprises step, wherein said terminal uses quality of reception measurement function to measure the quality of reception of the signal that receives from each described base station;
Wherein, the described quality of reception of measuring with the described quality of reception measurement function that uses described terminal satisfies predetermined condition, in addition, also do not utilize the transmission time difference of each described base station of described memory function storage, or current time and utilize difference between described computing time of described transmission time difference of described memory function storage to satisfy predetermined condition to be used as described predetermined condition.
13. transmission time difference method of measurement according to claim 2 also comprises step, wherein said terminal uses quality of reception measurement function to measure the quality of reception of the signal that receives from each described base station;
Wherein, with can utilize the certainty of measurement that equals or exceeds the certainty of measurement of predesignating realize described terminal described gyration time measurement function and described time of advent the difference measurements function, described terminal uses the number of times that the described gyration time measurement function and the described time of advent, the difference measurements function executing was measured to satisfy predetermined condition, in addition, the described quality of reception of utilizing the described quality of reception measurement function of described terminal to measure satisfies predetermined condition and is used as described predetermined condition.
14. transmission time difference method of measurement according to claim 2, wherein, with can utilize the certainty of measurement that equals or exceeds the certainty of measurement of predesignating realize described terminal described gyration time measurement function and described time of advent the difference measurements function, described terminal uses the number of times that the described gyration time measurement function and the described time of advent, the difference measurements function executing was measured to satisfy predetermined condition, in addition, also do not utilize the transmission time difference of each described base station of described memory function storage, or current time and utilize difference between described computing time of described transmission time difference of described memory function storage to satisfy predetermined condition to be used as described predetermined condition.
15. transmission time difference method of measurement according to claim 2 also comprises step, wherein said terminal uses quality of reception measurement function to measure the quality of reception of the signal that receives from each described base station;
Wherein, use the number of times that the described gyration time measurement function and the described time of advent, the difference measurements function executing was measured to satisfy predetermined condition with described terminal, utilize the described quality of reception of the described quality of reception measurement function measurement of described terminal to satisfy predetermined condition, in addition, also do not utilize the transmission time difference of each described base station of described memory function storage, or current time and utilize difference between described computing time of described transmission time difference of described memory function storage to satisfy predetermined condition to be used as described predetermined condition.
16. transmission time difference method of measurement according to claim 2 also comprises step, wherein said terminal uses quality of reception measurement function to measure the quality of reception of the signal that receives from each described base station;
Wherein, with can utilize the certainty of measurement that equals or exceeds the certainty of measurement of predesignating realize described terminal described gyration time measurement function and described time of advent the difference measurements function, described terminal uses the number of times that the described gyration time measurement function and the described time of advent, the difference measurements function executing was measured to satisfy predetermined condition, utilize the described quality of reception of the described quality of reception measurement function measurement of described terminal to satisfy predetermined condition, in addition, also do not utilize the transmission time difference of each described base station of described memory function storage, or current time and utilize difference between described computing time of described transmission time difference of described memory function storage to satisfy predetermined condition to be used as described predetermined condition.
17. transmission time difference method of measurement according to claim 1, wherein, when described control appliance has utilized described memory function to store transmission time difference,
Described control appliance calculates the described transmission time difference that utilized described memory function storage and the mean value of calculated described transmission time difference, and utilizes mean value that described memory function storage calculated as described transmission time difference.
18. transmission time difference method of measurement in the system of the control appliance of the base station with terminal, two or more each asynchronous workings and control terminal and each base station, described method is calculated the transmission time difference of the signal in each described base station, and described method comprises step:
When described terminal can be simultaneously from each described base station received signal,
It is poor the time of advent that described terminal utilization arrives the time difference measurements functional measurement, described time of advent of difference poor between the time that to be signal arrive from each described base station, utilize the GPS positioning function then, use the geographical position of specifying described terminal from the signal of gps satellite; And
The distance between described terminal and each the described base station is calculated in the geographical position of each described base station that described control appliance is measured according to the geographical position of described terminal with by described terminal, according to obtaining the transmission time difference of each described base station, utilize related calculated transmission time difference computing time of memory function storage and calculating transmission time difference then by propagation time difference that the difference between institute's calculated distance is calculated divided by the light velocity with in the difference time of advent that described terminal measures.
19. transmission time difference method of measurement according to claim 18, in wherein said terminal and the described control appliance each only can be simultaneously from each described base station received signal when described terminal, and described terminal is just to carry out the process of described step when satisfying the designated terminal of predetermined condition.
20. transmission time difference method of measurement according to claim 19 also comprises step, wherein said terminal uses quality of reception measurement function to measure the quality of reception of the signal that receives from each described base station;
Wherein, the described quality of reception of measuring with the described quality of reception measurement function that utilizes described terminal satisfies predetermined condition and is used as described predetermined condition.
21. transmission time difference method of measurement according to claim 19, wherein, with the transmission time difference of each described base station of also not utilizing the storage of described memory function, or the difference between the described computing time of current time and the described transmission time difference that utilizes described memory function to store satisfies predetermined condition and is used as described predetermined condition.
22. transmission time difference method of measurement according to claim 19 also comprises step, wherein said terminal uses quality of reception measurement function to measure the quality of reception of the signal that receives from each described base station;
Wherein, the described quality of reception of measuring with the described quality of reception measurement function that utilizes described terminal satisfies predetermined condition, in addition, also do not utilize the transmission time difference of each described base station of described memory function storage, or current time and utilize difference between described computing time of described transmission time difference of described memory function storage to satisfy predetermined condition to be used as described predetermined condition.
23. transmission time difference method of measurement according to claim 18, wherein, when described control appliance has utilized described memory function to store described transmission time difference,
Described control appliance calculates the described transmission time difference that utilized described memory function storage and the mean value of described transmission time difference as calculated, and the mean value that utilizes described memory function to store to be calculated is as described transmission time difference.
24. a transmission time difference measuring system comprises the base station of terminal, two or more each asynchronous workings and controls the control appliance of described terminal and each described base station, the transmission time difference of the signal in each described base station of described system-computed; Wherein:
Described control appliance comprises: measurement request device is used for sending the request of measurement to described terminal and described base station; And storage device, be used to store the transmission time difference of the described signal of base station related with the computing time of described transmission time difference as calculated;
Each described base station comprises: the measurement of round trip time device, be used for when receiving described control appliance and utilize the measurement request that described measurement request device sent, and measure two-way time to signal described terminal emission and that send from described terminal; And
Described terminal comprises: the gyration time measurement mechanism is used for measuring from described base station received signal to the gyration time to described base station transmit signals when receiving described control appliance and utilize the measurement request that described measurement request device sent; With the difference measurements device time of advent, be used for measure arriving the time difference, described time of advent, difference was poor between the time of the signal of at least two base stations arrival;
Wherein, when described terminal can be simultaneously from each described base station received signal,
Each described base station utilizes described measurement of round trip time device to carry out the process of measuring each two-way time;
Described terminal is utilized described gyration time measurement mechanism to carry out the gyration time of measuring each described base station and is utilized the described difference measurements device execution time of advent to measure the process that arrives the time difference; With
Described control appliance is carried out following processes: according to by deduct described terminal that the gyration time measured in described terminal calculates and the propagation time difference between each described base station from the two-way time at each described base station measurement, and poor in the time of advent that described terminal is measured, obtain the transmission time difference of the signal in each described base station; Storage transmission time difference as calculated in described storage device.
25. transmission time difference measuring system according to claim 24, wherein said terminal, each described base station and described control appliance are only when described terminal can be simultaneously from each described base station received signal, in addition, described terminal is to carry out described process when satisfying the designated terminal of predetermined condition.
26. transmission time difference measuring system according to claim 25, wherein, with the described gyration time measurement mechanism of described terminal and described time of advent the difference measurements device can carry out to measure with the certainty of measurement that equals or exceeds the certainty of measurement of predesignating and be used as described predetermined condition.
27. transmission time difference measuring system according to claim 25 wherein, is used the number of times of described gyration time measurement mechanism and the described difference measurements device execution measurement time of advent to satisfy predetermined condition with described terminal and is used as described predetermined condition.
28. transmission time difference measuring system according to claim 25, wherein said terminal also comprises quality of reception measurement mechanism, is used to measure the quality of reception of the signal that receives from each described base station;
Wherein, the described quality of reception of measuring with the described quality of reception measurement mechanism that utilizes described terminal satisfies predetermined condition and is used as described predetermined condition.
29. transmission time difference measuring system according to claim 25, wherein, with the transmission time difference of each described base station of also not storing in described storage device, or the difference between the described computing time of current time and the described transmission time difference stored in described storage device satisfies predetermined condition and is used as described predetermined condition.
30. transmission time difference measuring system according to claim 25, wherein, with the described gyration time measurement mechanism of described terminal and described time of advent the difference measurements device can utilize the certainty of measurement that equals or exceeds the certainty of measurement of predesignating to carry out to measure, in addition, described terminal is used the number of times of described gyration time measurement mechanism and the described difference measurements device execution measurement time of advent to satisfy predetermined condition and is used as described predetermined condition.
31. transmission time difference measuring system according to claim 25, wherein said terminal also comprises quality of reception measurement mechanism, is used to measure the quality of reception of the signal that receives from each described base station; With
Wherein, with the described gyration time measurement mechanism of described terminal and described time of advent the difference measurements device can utilize the certainty of measurement that equals or exceeds the certainty of measurement of predesignating to measure, in addition, the described quality of reception of utilizing the described quality of reception measurement mechanism of described terminal to measure satisfies predetermined condition and is used as described predetermined condition.
32. transmission time difference measuring system according to claim 25, wherein, with the described gyration time measurement mechanism of described terminal and described time of advent the difference measurements device can utilize the certainty of measurement that equals or exceeds the certainty of measurement of predesignating to carry out measurement, in addition, the also transmission time difference of each described base station of not storing in described storage device, or the difference between the described computing time of the described transmission time difference of storing in current time and the described storage device satisfies predetermined condition and is used as described predetermined condition.
33. transmission time difference measuring system according to claim 25, wherein said terminal also comprises quality of reception measurement mechanism, is used to measure the quality of reception of the signal that receives from each described base station; With
Wherein, use the number of times that the described gyration time measurement mechanism and the described time of advent, the execution of difference measurements device was measured to satisfy predetermined condition with described terminal, in addition, the described quality of reception of utilizing the described quality of reception measurement mechanism of described terminal to measure satisfies predetermined condition and is used as described predetermined condition.
34. transmission time difference measuring system according to claim 25, wherein, use the number of times that the described gyration time measurement mechanism and the described time of advent, the execution of difference measurements device was measured to satisfy predetermined condition with described terminal, in addition, difference between the described computing time of also transmission time difference of each described base station of not storing in described storage device, or current time and the described transmission time difference stored in described storage device satisfies predetermined condition and is used as described predetermined condition.
35. transmission time difference measuring system according to claim 25, wherein said terminal also comprises quality of reception measurement mechanism, is used to measure the quality of reception of the signal that receives from each described base station; With
The described quality of reception of measuring with the described quality of reception measurement mechanism that utilizes described terminal satisfies predetermined condition, in addition, difference between the described computing time of also transmission time difference of each described base station of not storing in described storage device, or current time and the described transmission time difference stored in described storage device satisfies predetermined condition and is used as described predetermined condition.
36. transmission time difference measuring system according to claim 25, wherein said terminal also comprises quality of reception measurement mechanism, is used to measure the quality of reception of the signal that receives from each described base station; With
With the described gyration time measurement mechanism of described terminal and described time of advent the difference measurements device can utilize the certainty of measurement that equals or exceeds the certainty of measurement of predesignating to measure, described terminal uses the number of times that the described gyration time measurement mechanism and the described time of advent, the execution of difference measurements device was measured to satisfy predetermined condition, in addition, the described quality of reception of utilizing the described quality of reception measurement mechanism of described terminal to measure satisfies predetermined condition and is used as described predetermined condition.
37. transmission time difference measuring system according to claim 25, wherein, with the described gyration time measurement mechanism of described terminal and described time of advent the difference measurements device can utilize the certainty of measurement that equals or exceeds the certainty of measurement of predesignating to measure, described terminal uses the number of times that the described gyration time measurement mechanism and the described time of advent, the execution of difference measurements device was measured to satisfy predetermined condition, in addition, difference between the described computing time of also transmission time difference of each described base station of not storing in described storage device, or current time and the described transmission time difference stored in described storage device satisfies predetermined condition and is used as described predetermined condition.
38. transmission time difference measuring system according to claim 25, wherein said terminal also comprises quality of reception measurement mechanism, is used to measure the quality of reception of the signal that receives from each described base station; With
Use the number of times that the described gyration time measurement mechanism and the described time of advent, the execution of difference measurements device was measured to satisfy predetermined condition with described terminal, utilize the described quality of reception of the described quality of reception measurement mechanism measurement of described terminal to satisfy predetermined condition, in addition, difference between the described computing time of also transmission time difference of each described base station of not storing in described storage device, or current time and the described transmission time difference stored in described storage device satisfies predetermined condition and is used as described predetermined condition.
39. transmission time difference measuring system according to claim 25, wherein said terminal also comprises quality of reception measurement mechanism, is used to measure the quality of reception of the signal that receives from each described base station; With
With the described gyration time measurement mechanism of described terminal and described time of advent the difference measurements device can utilize the certainty of measurement that equals or exceeds the certainty of measurement of predesignating to measure, described terminal uses the number of times that the described gyration time measurement mechanism and the described time of advent, the execution of difference measurements device was measured to satisfy predetermined condition, utilize the described quality of reception of the described quality of reception measurement mechanism measurement of described terminal to satisfy predetermined condition, in addition, difference between the described computing time of also transmission time difference of each described base station of not storing in described storage device, or current time and the described transmission time difference stored in described storage device satisfies predetermined condition and is used as described predetermined condition.
40. transmission time difference measuring system according to claim 24, wherein, when having stored described transmission time difference in the described storage device, described control device calculates the described transmission time difference stored in the described storage device and the mean value of described transmission time difference as calculated, and the mean value that calculates is stored in the described storage device as described transmission time difference.
41. a transmission time difference measuring system comprises the base station of terminal, two or more each asynchronous workings and controls the control appliance of described terminal and each described base station, the transmission time difference of the signal in each described base station of described system-computed; Wherein:
Described control appliance comprises: measurement request device is used for sending the request of measuring to described terminal; And storage device, be used to store the transmission time difference of the described signal of base station related with the computing time of calculating described transmission time difference;
Described terminal comprises the arrival time difference measuring apparatus, be used for when the described control appliance of reception utilizes the measurement request of described measurement request device transmission, measure to arrive the time difference, described time of advent, difference was poor between the time of the signal of at least two base stations arrival; With
In described terminal and the described control appliance at least one comprises the GPS positioner, is used to be used to the geographical position from the signal designated terminal of gps satellite;
Wherein, when described terminal can be simultaneously from each described base station received signal:
Described terminal is carried out and is utilized described time of advent difference measurements device to measure the process that arrives the time difference;
At least one execution in described terminal and the described control appliance utilizes the process in the geographical position of described GPS positioner designated terminal; With
Described control appliance is carried out following processes: calculate distance between described terminal and each the described base station according to the geographical position of each described base station of the geographical position of described terminal and measurement, according to obtaining the transmission time difference of each described base station, storage transmission time difference as calculated in described storage device by the propagation time difference that calculates divided by the light velocity with the difference of calculated distance with in the difference time of advent that described terminal is measured.
42. according to the described transmission time difference measuring system of claim 41, in wherein said terminal and the described control appliance each only can be simultaneously from each described base station received signal when described terminal, and described terminal is just to carry out described process when satisfying the designated terminal of predetermined condition.
43. according to the described transmission time difference measuring system of claim 42, wherein said terminal also comprises quality of reception measurement mechanism, is used to measure the quality of reception of the signal that receives from each described base station; With
Wherein, the described quality of reception of measuring with the described quality of reception measurement mechanism that utilizes described terminal satisfies predetermined condition and is used as described predetermined condition.
44. according to the described transmission time difference measuring system of claim 42, wherein, with the transmission time difference of each described base station of also not storing in described storage device, or the difference between the described computing time of current time and the described transmission time difference stored in described storage device satisfies predetermined condition and is used as described predetermined condition.
45. according to the described transmission time difference measuring system of claim 42, wherein said terminal also comprises quality of reception measurement mechanism, is used to measure the quality of reception of the signal that receives from each described base station; With
Wherein, the described quality of reception of measuring with the described quality of reception measurement mechanism that utilizes described terminal satisfies predetermined condition, in addition, difference between the described computing time of also transmission time difference of each described base station of not storing in described storage device, or current time and the described transmission time difference stored in described storage device satisfies predetermined condition and is used as described predetermined condition.
46. according to the described transmission time difference measuring system of claim 41, wherein, when having stored described transmission time difference in the described storage device, described control device calculates the described transmission time difference stored in the described storage device and the mean value of described transmission time difference as calculated, and the mean value that will calculate is stored in the described storage device as described transmission time difference.
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